Chosen

Chosen -makes long, unwieldy select boxes much more user-friendly

Chosen is a JavaScript plugin that makes long, unwieldy select boxes much more user-friendly. It is currently available in both jQuery and Prototype flavors.It supports standard select , multi-select,

with Selected and Disabled support.It offers progressive enhancements i.e you don’t need to do anything special to make it work for browsers without JavaScript and supports Dynamic updating using the following code$("#form_field").trigger("liszt:updated");.
Created by Harvest